Amino-Carboxy Type Captodative Radicals

将对一系列2-氧酰-3-基自由基进行俘获性自由基稳定的化学和物理后果的研究。俘获效应的自由基稳定程度将由光声量热法和光伏法确定。除了对俘获自由基的还原性质进行表征外，还将通过酰胺偶联低聚物和聚合物的合成来评估它们作为高自旋聚合物中心的最终用途。由氧啡啉结构衍生的二氢吡嗪将被用于制造具有多种强电子受体的导电CT配合物。来自有机动力学计划的这笔拨款支持科罗拉多大学的T. A. Koch教授继续进行研究。本文将研究以一种独特的方式稳定的自由基，这种方式是由附着在分子上的基团通过电子的性质来推动和拉动电子。这项研究的一个特别有趣的部分将集中在这种特殊设计的分子与能够导电的电子受体化合物形成复合物的能力上。此外，还提出利用聚合物中的这些自由基生成具有独特磁性的材料。这种材料在制造电子器件方面有潜在的应用。

An investigation of the chemical and physical consequences of captodative radical stabilization will be conducted for a series of 2-oxomorpholinyl-3-yl radical species. The extent of radical stabilization by captodative effects will be determined by photoacoustic calorimetry and photovoltammetry. In addition to the characterization of the reductive properties of captodative radicals, their ultimate use as centers for high spin polymers will be assessed by synthesis of amide coupled oligomers and polymers. Dihydropyrazines derived from the oxomorpholine structures will be employed to make conductive CT complexes with a variety of strong electron acceptors. %%% This grant from the Organic Dynamics Program suppports the continuing investigation by Professor T. A. Koch at the University of Colorado. A study of radical species stabilized in a unique manner by groups attached to the molecule which are able to push and pull electrons by virtue of the electronic nature will be conducted. A particular interesting part of the research will focus on the ability of specially designed molecules of this variety to form complexes with electron acceptor compounds which are capable of conducting electricity. In addition, it is proposed to utilize these radical species in polymers to generate materials which have unique magnetic properties. Such materials have potential applications in fabrication of electrical devices.